#ifndef CAR_H
#define CAR_H

#define GROUP 5
#define LEFT	1
#define RIGHT -1

#define set_bit(x, bit)	(x |= 1<<(bit))
#define clear_bit(x, bit)	(x &= ~(1<<(bit)))
#define get_bit(x, bit)	(x>>(bit) & 1)

extern volatile unsigned char (*data)[GROUP];

#endif
